/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/*
 * Input parameters for call activity
 */

angular.module('flowableModeler').controller('FlowableOutParametersCtrl', [
  '$scope',
  '$modal',
  '$timeout',
  '$translate',
  function($scope, $modal, $timeout, $translate) {
    // Config for the modal window
    var opts = {
      template: 'editor-app/configuration/properties/out-parameters-popup.html?version=' + Date.now(),
      scope: $scope
    }

    // Open the dialog
    _internalCreateModal(opts, $modal, $scope)
  }
])

angular.module('flowableModeler').controller('FlowableOutParametersPopupCtrl', [
  '$scope',
  '$q',
  '$translate',
  '$timeout',
  function($scope, $q, $translate, $timeout) {
    // Put json representing form properties on scope
    if (
      $scope.property.value !== undefined &&
      $scope.property.value !== null &&
      $scope.property.value.outParameters !== undefined &&
      $scope.property.value.outParameters !== null
    ) {
      // Note that we clone the json object rather then setting it directly,
      // this to cope with the fact that the user can click the cancel button and no changes should have happened
      $scope.parameters = angular.copy($scope.property.value.outParameters)
    } else {
      $scope.parameters = []
    }

    $scope.translationsRetrieved = false
    $scope.labels = {}

    var sourcePromise = $translate('PROPERTY.PARAMETER.SOURCE')
    var sourceExpressionPromise = $translate('PROPERTY.PARAMETER.SOURCEEXPRESSION')
    var targetPromise = $translate('PROPERTY.PARAMETER.TARGET')
    var targetExpressionPromise = $translate('PROPERTY.PARAMETER.TARGETEXPRESSION')

    $q.all([sourcePromise, sourceExpressionPromise, targetPromise, targetExpressionPromise]).then(function(results) {
      $scope.labels.sourceLabel = results[0]
      $scope.labels.sourceExpressionLabel = results[1]
      $scope.labels.targetLabel = results[2]
      $scope.labels.targetExpressionLabel = results[3]
      $scope.translationsRetrieved = true

      // Config for grid
      $scope.gridOptions = {
        data: $scope.parameters,
        headerRowHeight: 28,
        enableRowSelection: true,
        enableRowHeaderSelection: false,
        multiSelect: false,
        modifierKeysToMultiSelect: false,
        enableHorizontalScrollbar: 0,
        enableColumnMenus: false,
        enableSorting: false,
        columnDefs: [
          { field: 'source', displayName: $scope.labels.sourceLabel },
          { field: 'sourceExpression', displayName: $scope.labels.sourceExpressionLabel },
          { field: 'target', displayName: $scope.labels.targetLabel },
          { field: 'targetExpression', displayName: $scope.labels.targetExpressionLabel }
        ]
      }

      $scope.gridOptions.onRegisterApi = function(gridApi) {
        //set gridApi on scope
        $scope.gridApi = gridApi
        gridApi.selection.on.rowSelectionChanged($scope, function(row) {
          $scope.selectedParameter = row.entity
        })
      }
    })

    // Click handler for add button
    $scope.addNewParameter = function() {
      var newParameter = {
        source: '',
        sourceExpression: '',
        target: '',
        targetExpression: ''
      }

      $scope.parameters.push(newParameter)
      $timeout(function() {
        $scope.gridApi.selection.toggleRowSelection(newParameter)
      })
    }

    // Click handler for remove button
    $scope.removeParameter = function() {
      var selectedItems = $scope.gridApi.selection.getSelectedRows()
      if (selectedItems && selectedItems.length > 0) {
        var index = $scope.parameters.indexOf(selectedItems[0])
        $scope.gridApi.selection.toggleRowSelection(selectedItems[0])
        $scope.parameters.splice(index, 1)

        if ($scope.parameters.length == 0) {
          $scope.selectedParameter = undefined
        }

        $timeout(function() {
          if ($scope.parameters.length > 0) {
            $scope.gridApi.selection.toggleRowSelection($scope.parameters[0])
          }
        })
      }
    }

    // Click handler for up button
    $scope.moveParameterUp = function() {
      var selectedItems = $scope.gridApi.selection.getSelectedRows()
      if (selectedItems && selectedItems.length > 0) {
        var index = $scope.parameters.indexOf(selectedItems[0])
        if (index != 0) {
          // If it's the first, no moving up of course
          var temp = $scope.parameters[index]
          $scope.parameters.splice(index, 1)
          $timeout(function() {
            $scope.parameters.splice(index + -1, 0, temp)
            $timeout(function() {
              $scope.gridApi.selection.toggleRowSelection(temp)
            })
          })
        }
      }
    }

    // Click handler for down button
    $scope.moveParameterDown = function() {
      var selectedItems = $scope.gridApi.selection.getSelectedRows()
      if (selectedItems && selectedItems.length > 0) {
        var index = $scope.parameters.indexOf(selectedItems[0])
        if (index != $scope.parameters.length - 1) {
          // If it's the last element, no moving down of course
          var temp = $scope.parameters[index]
          $scope.parameters.splice(index, 1)
          $timeout(function() {
            $scope.parameters.splice(index + 1, 0, temp)
            $timeout(function() {
              $scope.gridApi.selection.toggleRowSelection(temp)
            })
          })
        }
      }
    }

    // Click handler for save button
    $scope.save = function() {
      if ($scope.parameters.length > 0) {
        $scope.property.value = {}
        $scope.property.value.outParameters = $scope.parameters
      } else {
        $scope.property.value = null
      }

      $scope.updatePropertyInModel($scope.property)
      $scope.close()
    }

    $scope.cancel = function() {
      $scope.close()
    }

    // Close button handler
    $scope.close = function() {
      $scope.property.mode = 'read'
      $scope.$hide()
    }
  }
])
